Results 261 to 270 of about 789,662 (314)

p-Cross-section bodies

Indiana University Mathematics Journal, 1999
The authors investigate so-called \(p\)-cross-section bodies \(C_pK(p>-1)\) whose radial function in any direction \(u\in S^{d-1}\) is the \(p\)-th mean of the \((d-2)\)-volumes of hyperplane sections (orthogonal to \(u)\) of a convex body \(K\subset\mathbb{R}^d\). They prove that \(C_1K\) is convex, whereas \(C_pK\) is generally not convex for \(p>1\).
Gardner, R. J., Giannopoulos, A. A.
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THE RADAR CROSS SECTION OF A SEMI-INFINITE BODY

Canadian Journal of Physics, 1960
The concept of cross section as applied to a semi-infinite scattering body seems to require some clarification. The need for careful formulation of the problem arises because of the simultaneous occurrence of two characteristic lengths tending to infinity: the range from the radar to the target, and the size of the target.
H. Brysk
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Cross Sections in the Three-Body Problem

Journal of Dynamics and Differential Equations, 2000
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
McCord, Christopher, Meyer, Kenneth R.
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Adolescents and Body Image: A Cross Sectional Study

The Indian Journal of Pediatrics, 2015
To assess proportion of adolescents perceiving their body image as normal and to study association between body shape, self-esteem and body mass index; each with body image perception.A cross sectional study was conducted among pre university college (PUC) students of Udupi taluk.
Mannat M, Singh, Lena, Ashok, V S, Binu, Shradha S, Parsekar, T V, Bhumika   +4 more
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Health and ageing: A cross-sectional study of body composition

Clinical Nutrition, 2013
The aim of this work was to provide a complete profile of body composition (BC) in healthy subjects and to investigate age and gender-related differences by dual-energy X-ray absorptiometry (DXA) and its latest developments.Italian volunteers among blood donors were enrolled in 5 different age bands (from 18 to 70 years old) to reach the threshold of ...
A. Bazzocchi, D. Diano, F. Ponti, A. Andreone, SASSI, CLAUDIA, U. Albisinni, MARCHESINI REGGIANI, GIULIO, BATTISTA, GIUSEPPE   +7 more
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The cross-section body, plane sections of convex bodies and approximation of convex bodies, I

Geometriae Dedicata, 1996
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Makai, E. jun., Martini, H.
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Convex bodies with non‐convex cross‐section bodies

Mathematika, 1999
For \(K\) a convex body in \(\mathbb{R}^d\), the inner \((d-1)\)-quermass at direction \(u\in S^{d-1}\) is defined by \[ m_K(u)= \max_{t\in R}\lambda_{d-1} \bigl( K\cap (u^\perp+ tu)\bigr), \] where \(\lambda_{d-1}\) denotes the \((d-1)\)-dimensional Lebesgue measure. The cross-section body \(CK\) of \(K\), introduced by H.
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The advantages and limitations of cross-sectional body composition analysis

Current Opinion in Supportive & Palliative Care, 2011
Cross-sectional (C-S) imaging is now commonly used to measure body composition in clinical studies. This review highlights the advantages, limitations and suggested future directions for this technique.Current understanding of C-S imaging reproducibility, tissue identification and segmentation methods, comparison between imaging techniques and ...
Alisdair J, MacDonald, Carolyn A, Greig, Vickie, Baracos   +2 more
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